ruby code example(7)

ruby code example(7)

##数组
a = [ 'ant', 'bee', 'cat', 'dog', 'elk' ]
  a[0]
  a[3]
# this is the same:
  a = %w{ ant bee cat dog elk }
  a[0]
  a[3]

##hash表
 inst_section = {
    'cello'     => 'string',
    'clarinet'  => 'woodwind',
    'drum'      => 'percussion',
    'oboe'      => 'woodwind',
    'trumpet'   => 'brass',
    'violin'    => 'string'
  }

  inst_section['oboe']
  inst_section['cello']
  inst_section['bassoon']